Strictification and non-strictification of monoidal categories

It is a classical result that any monoidal category is monoidally equivalent to a strict one, called its strictification. In this paper, we prove that any monoidal category is also monoidally equivalent to a non-strict monoidal category, called its non-strictification. Furthermore, we show that these two constructions give the free (non-)strict monoidal category generated by a monoidal category. Moreover, we prove in detail that these two constructions are part of a pair of free-forgetful 2-adjunctions.Comment: 23 pages. Comments are welcom

Educación y ciudadanía: Un estudio de caso en la Universidad Militar Nueva Granada

El proyecto de investigación se inscribe en la problemática de la educación moral y política de los ciudadanos y las condiciones propias para la convivencia en el contexto de la globalización, temáticas que forman parte de la preocupación fundamental de la línea de investigación sobre Educación y Sociedad de la Maestría en Educación de la Universidad de la Universidad Militar Nueva Granada UMNG

Impact of Physical/Chemical Properties of Volcanic Ash-Derived Soils on Mechanisms Involved during Sorption of Ionisable and Non-Ionisable Herbicides

Volcanic ash-derived soils (VADSs) are of great importance in the agricultural economy of several emerging and developing countries. The surface-charge amphoteric characteristics will confer physical/chemical properties absolutely different to constant-charge soils. This surface reactivity will confer to them a particular behaviour in relation to the herbicide sorption, representing an environmental substrate that may become polluted over time due to intensive agronomic uses. Sorption is a key parameter to evaluate the fate and behaviour of herbicides in volcanic soils. Sorption type and kinetic sorption models are also necessary in order to develop and validate QSAR models to predict pesticide sorption on volcanic soils to prevent potential contamination of water resources. The use of solute sorption mechanism models and QSAR models for pesticide sorption in soils has contributed to a better understanding of the behaviour of pesticides on volcanic soils. This chapter is divided into five sections: Physical/chemical properties of volcanic ash-derived soils; Ionisable and non-ionisable herbicides’ fate and behaviour in soil; Kinetic sorption: mechanisms involved during sorption of ionisable and non-ionisable herbicides on VADS; Sorption of ionisable and non-ionisable herbicides on VADS; and Physical/chemical properties in QSAR models: a mechanistic interpretation

Diseño e implementación de una aplicación web para mejorar los resultados académicos de los alumnos de una escuela

[Resumen] El objetivo de este proyecto es el diseño e implementación de una aplicación web que de soporte a los profesores y alumnos de una determinada escuela. Para ello contará con una herramienta de generación de cuestionarios tipo Test, un foro de resolución de dudas, un sistema de mensajería, un calendario de eventos y un sistema de clasificación de mejores alumnos por materia y grupo para incentivar a los alumnos a colaborar en el foro. Para el desarrollo del sistema se usará React para la generación de la interfaz y Spring Boot para la generación del modelo.[Abstract] The objective of this project is to design and implement a web application that supports the teachers and students of a certain school. For this, it will have a tool for generating Testtype questionnaires, a forum for resolving doubts, a messaging system, a calendar of events and a system for classifying the best students by subject and group to encourage students to collaborate in the forum. For the development of the system, React will be used for the generation of the interface and Spring Boot for the generation of the model.Traballo fin de grao (UDC.FIC). Enxeñaría informática. Curso 2019/202